<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片试图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" class="input-with-select " clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4"><el-button type="primary" @click="addDialogVisible = true">添加用户</el-button></el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border style="width: 100%">
        <el-table-column type="index" label="序号"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini"  @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini"  @click="showSetRole(scope.row)" ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!--  分页 -->
      <div class="block">
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[8, 10, 12, 14]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
        ></el-pagination>
      </div>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主体 -->
      <el-form :model="addUserForm" ref="addUserFormRef" :rules="addUserFormRules" label-width="100px">
        <el-form-item label="用户名" prop="username"><el-input v-model="addUserForm.username"></el-input></el-form-item>
        <el-form-item label="密码" prop="password"><el-input v-model="addUserForm.password"></el-input></el-form-item>
        <el-form-item label="邮箱" prop="email"><el-input v-model="addUserForm.email"></el-input></el-form-item>
        <el-form-item label="手机" prop="mobile"><el-input v-model="addUserForm.mobile"></el-input></el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户信息的对话框 -->
   <el-dialog
     title="修改用户信息"
     :visible.sync="editDialogVisible"
     width="50%"
     @close="editDialogClosed"
   >
     <!-- 内容主体 -->
     <el-form
       :model="editUserForm"
       ref="editUserFormRef"
       :rules="editUserFormRules"
       label-width="70px"
     >
       <el-form-item label="用户名">
         <el-input v-model="editUserForm.username" disabled></el-input>
       </el-form-item>
       <el-form-item label="邮箱" prop="email">
         <el-input v-model="editUserForm.email"></el-input>
       </el-form-item>
       <el-form-item label="手机" prop="mobile">
         <el-input v-model="editUserForm.mobile"></el-input>
       </el-form-item>
     </el-form>
     <span slot="footer" class="dialog-footer">
       <el-button @click="editDialogVisible = false">取 消</el-button>
       <el-button type="primary" @click="editUser">确 定</el-button>
     </span>
   </el-dialog>

 <!-- 分配角色对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
      <div>
        <p>当前用户：{{userInfo.username}}</p>
        <p>当前角色：{{userInfo.role_name}}</p>
        <p>
          分配角色：
          <el-select
            v-model="selectRoleId"
            filterable
            allow-create
            default-first-option
            placeholder="请选择文章标签"
          >
            <el-option
              v-for="item in rolesLsit"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>

  </div>
</template>

<script>
export default {
  data() {
    // 自定义邮箱规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/;
      if (regEmail.test(value)) {
        // 合法邮箱
        return callback();
      }
      callback(new Error('请输入合法邮箱'));
    };
    // 自定义手机号规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^1[34578]\d{9}$/;
      if (regMobile.test(value)) {
        return callback();
      }
      // 返回一个错误提示
      callback(new Error('请输入合法的手机号码'));
    };
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        //当前的页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 8
      },
      userlist: [],
      total: 0,
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      addUserForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //修改
      editDialogVisible: false,
      editUserForm: {},
      // 用户添加表单验证规则
      addUserFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 2,
            max: 10,
            message: '用户名的长度在2～10个字',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入用户密码', trigger: 'blur' },
          {
            min: 6,
            max: 18,
            message: '用户密码的长度在6～18个字',
            trigger: 'blur'
          }
        ],
        email: [{ required: true, message: '请输入邮箱', trigger: 'blur' }, { validator: checkEmail, trigger: 'blur' }],
        mobile: [{ required: true, message: '请输入手机号码', trigger: 'blur' }, { validator: checkMobile, trigger: 'blur' }]
      },
      // 用户修改表单验证规则
     editUserFormRules: {
       email: [
         { required: true, message: '请输入邮箱', trigger: 'blur' },
         { validator: checkEmail, trigger: 'blur' }
       ],
       mobile: [
         { required: true, message: '请输入手机号码', trigger: 'blur' },
         { validator: checkMobile, trigger: 'blur' }
       ]
     },
     // 分配角色对话框
     setRoleDialogVisible: false,
     // 当前需要被分配角色的用户
     userInfo: {},
     // 所有角色数据列表
     rolesLsit: [],
     // 已选中的角色Id值
     selectRoleId: ''
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo });
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败');
      }
      this.userlist = res.data.users;
      this.total = res.data.total;
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    // 监听Switch开关状态的改变
    async userStateChanged(userInfo) {
      // console.log(userInfo)
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`);
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error('更新用户状态失败');
      }
      this.$message.success('更新用户状态成功！');
    },
    // 监听 添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addUserFormRef.resetFields();
    },
    // 添加用户
    addUser() {
      // 提交请求前，表单预验证
      this.$refs.addUserFormRef.validate(async valid => {
        // console.log(valid)
        // 表单预校验失败
        if (!valid) return;
        const { data: res } = await this.$http.post('users', this.addUserForm);
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！');
        }
        this.$message.success('添加用户成功！');
        // 隐藏添加用户对话框
        this.addDialogVisible = false;
        this.getUserList();
      });
    },
    //展示编辑用户的对话框
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.editUserForm = res.data
      this.editDialogVisible = true
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed(){
     this.$refs.editUserFormRef.resetFields();
   },
   // 修改用户信息
   editUser () {
     // 提交请求前，表单预验证
     this.$refs.editUserFormRef.validate(async valid => {
       // console.log(valid)
       // 表单预校验失败
       if (!valid) return
       const { data: res } = await this.$http.put(
         'users/' + this.editUserForm.id,
         {
           email: this.editUserForm.email,
           mobile: this.editUserForm.mobile
         }
       )
       if (res.meta.status !== 200) {
         this.$message.error('更新用户信息失败！')
       }
       // 隐藏添加用户对话框
       this.editDialogVisible = false
       this.$message.success('更新用户信息成功！')
       this.getUserList()
     })
   },
   // 删除用户
   async removeUserById (id) {
     const confirmResult = await this.$confirm(
       '此操作将永久删除该用户, 是否继续?',
       '提示',
       {
         confirmButtonText: '确定',
         cancelButtonText: '取消',
         type: 'warning'
       }
     ).catch(err => err)
     // 点击确定 返回值为：confirm
     // 点击取消 返回值为： cancel
     if (confirmResult !== 'confirm') {
       return this.$message.info('已取消删除')
     }
     const { data: res } = await this.$http.delete('users/' + id)
     if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
     this.$message.success('删除用户成功！')
     this.getUserList()
   },
   // 展示分配角色的对话框
   async showSetRole (role) {
     this.userInfo = role
     // 展示对话框之前，获取所有角色列表
     const { data: res } = await this.$http.get('roles')
     if (res.meta.status !== 200) {
       return this.$message.error('获取角色列表失败！')
     }
     this.rolesLsit = res.data
     this.setRoleDialogVisible = true
   },
   // 分配角色
   async saveRoleInfo () {
     if (!this.selectRoleId) {
       return this.$message.error('请选择要分配的角色')
     }
     const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
     if (res.meta.status !== 200) {
       return this.$message.error('更新用户角色失败！')
     }
     this.$message.success('更新角色成功！')
     this.getUserList()
     this.setRoleDialogVisible = false
   },
   // 分配角色对话框关闭事件
   setRoleDialogClosed () {
     this.selectRoleId = ''
     this.userInfo = {}
   }
  }
};
</script>

<style></style>
